Docker build fails with a permissions error

[DinoChiesa]

Summary

Docker build fails with a permissions error.

Details

When I ran this command:

docker build -t migration-assessment-tool:v20250228 .

It failed.

...
Executing busybox-1.37.0-r12.trigger
Executing fontconfig-2.15.0-r1.trigger
Executing glib-2.82.5-r0.trigger
Executing graphviz-12.2.0-r0.trigger
OK: 47 MiB in 80 packages
Removing intermediate container f888af18871a
 ---> 0b7a54f2e2e1
Step 3/9 : USER apigee
 ---> Running in 95a2a29ca6ed
Removing intermediate container 95a2a29ca6ed
 ---> 2287443036b8
Step 4/9 : WORKDIR /app
 ---> Running in 8fbf0cc0569e
Removing intermediate container 8fbf0cc0569e
 ---> 3d1b1dc8ed12
Step 5/9 : COPY requirements.txt requirements.txt
 ---> d6f18d2fd4ca
Step 6/9 : RUN python3 -m pip install --no-cache-dir -r requirements.txt
 ---> Running in c711d3a99d97
Defaulting to user installation because normal site-packages is not writeable
ERROR: Could not open requirements file: [Errno 13] Permission denied: 'requirements.txt'

The requirements.txt file exists. It's a permissions error.

I think a chmod may be necessary.

[DinoChiesa]

Once I have built the Docker image, I cannot execute it. Maybe the permissions on the .py modules are not right. But even if I set them to 755 before docker build, I still run into another error, that I don't understand.

shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ DOCKER_IMAGE="migration-assessment-tool:v20250228a"
shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ docker build -t migration-assessment-tool:v20250228a .^C
shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ docker run --rm   -v "$(pwd)/output:/app/target"     -v "$(pwd)/input.properties:/app/input.properties"     -e SOURCE_AUTH_TOKEN=$EDGE_TOKEN     -e APIGEE_ACCESS_TOKEN=$X_TOKEN     $DOCKER_IMAGE --resources all
python3: can't open file '/app/main.py': [Errno 13] Permission denied
shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ chmod 755 main.py
shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ docker build -t migration-assessment-tool:v20250228a .
Sending build context to Docker daemon  16.64MB
Step 1/9 : FROM python:3.11-alpine
 ---> 30c8acedd72d
Step 2/9 : RUN addgroup -S apigee &&     adduser -S apigee -G apigee &&     mkdir -p /app &&     chown apigee:apigee /app &&     apk add --no-cache graphviz=12.2.0-r0
 ---> Using cache
 ---> 0b7a54f2e2e1
Step 3/9 : USER apigee
 ---> Using cache
 ---> 2287443036b8
Step 4/9 : WORKDIR /app
 ---> Using cache
 ---> 3d1b1dc8ed12
Step 5/9 : COPY requirements.txt requirements.txt
 ---> Using cache
 ---> 328add4fe2f2
Step 6/9 : RUN python3 -m pip install --no-cache-dir -r requirements.txt
 ---> Using cache
 ---> b6070d82f96a
Step 7/9 : COPY . .
 ---> 6e379528717e
Step 8/9 : HEALTHCHECK     CMD python -c 'print()'
 ---> Running in b3d9950701c2
Removing intermediate container b3d9950701c2
 ---> 7b58e34d57d2
Step 9/9 : ENTRYPOINT ["python3", "main.py"]
 ---> Running in 4e4375ef94af
Removing intermediate container 4e4375ef94af
 ---> c18df1e981b8
Successfully built c18df1e981b8
Successfully tagged migration-assessment-tool:v20250228a
shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ docker run --rm   -v "$(pwd)/output:/app/target"     -v "$(pwd)/input.properties:/app/input.properties"     -e SOURCE_AUTH_TOKEN=$EDGE_TOKEN     -e APIGEE_ACCESS_TOKEN=$X_TOKEN     $DOCKER_IMAGE --resources all
Traceback (most recent call last):
  File "/app/main.py", line 31, in <module>
    from core_wrappers import (
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 936, in exec_module
  File "<frozen importlib._bootstrap_external>", line 1073, in get_code
  File "<frozen importlib._bootstrap_external>", line 1130, in get_data
PermissionError: [Errno 13] Permission denied: '/app/core_wrappers.py'
shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ chmod 755 *.py
shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ docker build -t migration-assessment-tool:v20250228a .
Sending build context to Docker daemon  16.64MB
Step 1/9 : FROM python:3.11-alpine
 ---> 30c8acedd72d
Step 2/9 : RUN addgroup -S apigee &&     adduser -S apigee -G apigee &&     mkdir -p /app &&     chown apigee:apigee /app &&     apk add --no-cache graphviz=12.2.0-r0
 ---> Using cache
 ---> 0b7a54f2e2e1
Step 3/9 : USER apigee
 ---> Using cache
 ---> 2287443036b8
Step 4/9 : WORKDIR /app
 ---> Using cache
 ---> 3d1b1dc8ed12
Step 5/9 : COPY requirements.txt requirements.txt
 ---> Using cache
 ---> 328add4fe2f2
Step 6/9 : RUN python3 -m pip install --no-cache-dir -r requirements.txt
 ---> Using cache
 ---> b6070d82f96a
Step 7/9 : COPY . .
 ---> d2af3c8930c6
Step 8/9 : HEALTHCHECK     CMD python -c 'print()'
 ---> Running in 1bdf9aa189e5
Removing intermediate container 1bdf9aa189e5
 ---> c796b1999870
Step 9/9 : ENTRYPOINT ["python3", "main.py"]
 ---> Running in a6cf10fc22f9
Removing intermediate container a6cf10fc22f9
 ---> 2bd6cfac9305
Successfully built 2bd6cfac9305
Successfully tagged migration-assessment-tool:v20250228a
shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ docker run --rm   -v "$(pwd)/output:/app/target"     -v "$(pwd)/input.properties:/app/input.properties"     -e SOURCE_AUTH_TOKEN=$EDGE_TOKEN     -e APIGEE_ACCESS_TOKEN=$X_TOKEN     $DOCKER_IMAGE --resources all
Traceback (most recent call last):
  File "/app/main.py", line 31, in <module>
    from core_wrappers import (
  File "/app/core_wrappers.py", line 52, in <module>
    from validator import ApigeeValidator
  File "/app/validator.py", line 29, in <module>
    from assessment_mapping.targetservers import targetservers_mapping
ModuleNotFoundError: No module named 'assessment_mapping.targetservers'
shpool:dev dchiesa@dpchiesa:~/newdev/apigee-migration-assessment-tool$ 

[anaik91]

Can you verify this again from your end , as I am not able to replicate it in multiple workstations?

ashwinknaik@cloudshell:~ (apigee-hybrid-378710)$ git clone https://github.com/apigee/apigee-migration-assessment-tool.git
Cloning into 'apigee-migration-assessment-tool'...
remote: Enumerating objects: 550, done.
remote: Counting objects: 100% (77/77), done.
remote: Compressing objects: 100% (57/57), done.
remote: Total 550 (delta 26), reused 24 (delta 20), pack-reused 473 (from 1)
Receiving objects: 100% (550/550), 666.37 KiB | 6.23 MiB/s, done.
Resolving deltas: 100% (317/317), done.
ashwinknaik@cloudshell:~ (apigee-hybrid-378710)$ cd apigee-migration-assessment-tool/
ashwinknaik@cloudshell:~/apigee-migration-assessment-tool (apigee-hybrid-378710)$ docker build -t migration-assessment-tool:v20250228 .
2025/03/03 04:30:31 in: []string{}
2025/03/03 04:30:31 Parsed entitlements: []
[+] Building 30.5s (11/11) FINISHED                                                                                                                             docker:default
 => [internal] load build definition from Dockerfile                                                                                                                      0.0s
 => => transferring dockerfile: 1.19kB                                                                                                                                    0.0s
 => [internal] load metadata for docker.io/library/python:3.11-alpine                                                                                                     0.7s
 => [internal] load .dockerignore                                                                                                                                         0.0s
 => => transferring context: 70B                                                                                                                                          0.0s
 => [internal] load build context                                                                                                                                         0.1s
 => => transferring context: 1.06MB                                                                                                                                       0.0s
 => [1/6] FROM docker.io/library/python:3.11-alpine@sha256:d5e2fc72296647869f5eeb09e7741088a1841195059de842b05b94cb9d3771bb                                               1.9s
 => => resolve docker.io/library/python:3.11-alpine@sha256:d5e2fc72296647869f5eeb09e7741088a1841195059de842b05b94cb9d3771bb                                               0.0s
 => => sha256:049da2edc1edd29a37b4479d60066fe240a0f0aee79bd02c2ecca69ef6c66884 1.74kB / 1.74kB                                                                            0.0s
 => => sha256:30c8acedd72d7c8bcd2f778c3ea5a3d75390bc43b9cf0bb390c1bbae9a3e36e6 5.09kB / 5.09kB                                                                            0.0s
 => => sha256:f18232174bc91741fdf3da96d85011092101a032a93a388b79e99e69c2d5c870 3.64MB / 3.64MB                                                                            0.2s
 => => sha256:4bf0423a57b10233f485650edf888de41db5d8d25f63a1635c1e869fb2fd0162 458.62kB / 458.62kB                                                                        0.1s
 => => sha256:d3746672e3ddae3ce820ad4aa209ea746304e5b6561da73486d5d01489f66d76 16.21MB / 16.21MB                                                                          0.3s
 => => sha256:d5e2fc72296647869f5eeb09e7741088a1841195059de842b05b94cb9d3771bb 9.03kB / 9.03kB                                                                            0.0s
 => => sha256:2aad0d33617a1b09816fdedc13afa40a6d83ba70759183d162989213061fd836 250B / 250B                                                                                0.2s
 => => extracting sha256:f18232174bc91741fdf3da96d85011092101a032a93a388b79e99e69c2d5c870                                                                                 0.1s
 => => extracting sha256:4bf0423a57b10233f485650edf888de41db5d8d25f63a1635c1e869fb2fd0162                                                                                 0.1s
 => => extracting sha256:d3746672e3ddae3ce820ad4aa209ea746304e5b6561da73486d5d01489f66d76                                                                                 1.0s
 => => extracting sha256:2aad0d33617a1b09816fdedc13afa40a6d83ba70759183d162989213061fd836                                                                                 0.0s
 => [2/6] RUN addgroup -S apigee &&     adduser -S apigee -G apigee &&     mkdir -p /app &&     chown apigee:apigee /app &&     apk add --no-cache graphviz=12.2.0-r0     2.9s
 => [3/6] WORKDIR /app                                                                                                                                                    0.0s 
 => [4/6] COPY requirements.txt requirements.txt                                                                                                                          0.0s 
 => [5/6] RUN python3 -m pip install --no-cache-dir -r requirements.txt                                                                                                  22.6s 
 => [6/6] COPY . .                                                                                                                                                        0.3s 
 => exporting to image                                                                                                                                                    1.9s 
 => => exporting layers                                                                                                                                                   1.9s 
 => => writing image sha256:518165ea94f99bdd4e7b8a7acf5b06fe648f1cfacb45e5448aea512544cbd309                                                                              0.0s 
 => => naming to docker.io/library/migration-assessment-tool:v20250228                                                                                                    0.0s 
ashwinknaik@cloudshell:~/apigee-migration-assessment-tool (apigee-hybrid-378710)$      

[DinoChiesa]

Just tried again.
When I run on cloud shell, as you did, it works.
When I run on my Linux workstation, it fails as I originally reported.

Let me know if there is more information I can provide to you.